The Heckler & Koch MP5 has been the CQB weapon of choice for military and government operatives around the world for better part of the last half century. Weighing in at just over five and a half pounds this 9mm select fire submachine gun gained popularity for being lightweight and easy to maneuver. There have been over 120 different variants of the MP5 each addressing specific tactical requirements making the gun extremely versatile.

This airsoft replica of the MP5 is fully licensed with H&K trademarks through Umarex. It is manufactured under contract by Top Tech of Taiwan and uses their own Pneumatic Blow Back gearbox. Unlike other AEG blow backs which use a tow hook design where the bolt is physically pulled back by the piston, the Top Tech pneumatic system incorporates a secondary cylinder on top of the gearbox which uses a very small amount of air compressed from the main piston to drive back the bolt. Since the system operates solely on air pressure it does not put any stress on your gearbox and does not affect its rate of fire. Also, unlike most tow hook systems the bolt will only recoil when the gun fires making it much more realistic. When the system operates it emits a series of metallic sounds which combined with the noise of the air expanding the secondary cylinder gives this gun an intimidating report.

Top Tech is partnered with G&G and have used their rugged EGM body for their creation. This two piece metal body quickly separates after simply removing a single pin from the receiver making them very easy to take down for maintenance or modification. They used a Version 2 gearbox which although modified for their pneumatic system is still compatible with most aftermarket upgrade parts. Although out of the box this gun is already pretty well equipped with steel gears running on 8mm bearing bushings, a steel core spring guide with bearing, a ported aluminum piston head with bearing and low resistance wiring.

The H&K MP5-A4 is the classic configuration which features a full stock, standard handguard and ambidextrous selector switches. Other features include a Navy style quick detach flash hider, 3 lug muzzle with 14mm CCW thread tip, authentic HK style rotary rear sight and hooded front sight. Its stock is spacious enough to house large type batteries up to a 9.6v 4500mah. However, for reliability reasons we do not recommend using a battery this large as it can push the guns rate of fire to damaging levels. Using only an 8.4v battery this gun will produce a withering 1,000 rounds per minute which will put 16 rounds in the air in less than one second. This coupled with a healthy muzzle velocity of 350 fps makes this an ideal gun for both indoor and outdoor fields of play.

Putting together the sheer shooting enjoyment of the pneumatic blow back, the awesome build quality and design, plus the fact that this is one of the first quality MP5 AEGs to be licensed by H&K makes this a must have for the collector and shooter alike.

Please Note: Since the pneumatic blow back operates on back pressure from the piston, the bolt will only recoil fully when the gun is loaded.

This Umarex product comes with a 1 year warranty provided by Umarex USA. Warranty repair or replacement on this item must go through the Umarex Service Center and does not fall under the Shorty USA warranty.

This gun is great for the price and i would definitely say it's the best gun i have purchased and i have had well over 20 guns. This gun shoots at 360 with a 3600 mah 8.4 volt but i would recommend a 4200 mah 8.4 volt and or 9.6 volt for longer activities. This gun is very well in battles. With one mag from this i was able to keep back two m249 saws and get an additional 4 people out. I would definitely say that for the price the fire rate is unbelievable. The fps is awesome.

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Cons-
No optics mount- gotta purchase it seperately. Doesn't bother me at all, but listed as a con because some may be slightly irritated
It only comes with one mag
Fire select switch- yes it's ambidexterous and true to the real rifle specs, but when switched to Full Auto, it almost feels like it turns off axis.

Overal- again an amazing rifle, probably my #1 or #2 indoor rifle

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This H&K MP5 is a very nice gun. Umarex has stepped into the field of airsoft guns and has started off working with some AEGs, like this Tokyo Marui clone. This AEG excels in CQC as it offers a high rate of fire and a decent feet per second. The magazine is a downside in my opinion, as I would rather shoot consecutively 70 rounds in the actual Tokyo Marui H&K MP5 than have to wind up for only 200 rounds. Overall, this gun is 20 dollars more for the average Tokyo Marui MP5 and only 30 dollars less than the Tokyo Marui MP5 with built-in features such as different stocks and silencers. Honestly, just go with the Tokyo Marui. If you are one of those players who feel they need a higher FPS than the standard 280, Tokyo Marui guns are easy to upgrade. My Tokyo Marui shoots at about 400 FPS and 900 RPM. Remember though, this voids warranty.

Don't get me wrong. This is a very nice SMG, but for the price I'd go for the higher quality gun.

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This is a great gun for playing in your yard. I love this gun. Pretty good fire power, fairly accurate. Really depends on how far you're shooting with the accuracy. Full auto and semi always nice to have. Great for owning your friends.

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